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asd@as.asdasd@as.asd 

Test for Undelete

hello,

  i want to write a test class for a trigger but my test class cant cover Trigger on  undelete.

 Trigger 

trigger triggerOnMyCount on Student__c ( after insert , after delete ,after undelete) {

Map<Id,Class__c> claMap= new Map<id,Class__C>([Select c.NumberOfStudents__c,c.MyCount__c From Class__c c ]);
if(Trigger.isInsert){
for( student__c std : trigger.new ){
class__c cls=claMap.get(std.class__c);
cls.MyCount__c=cls.NumberOfStudents__c+1;
update cls;
}

}

if(trigger.isdelete){
for(student__c std : trigger.old){
class__c cls=claMap.get(std.class__c);
cls.MyCount__c=cls.NumberOfStudents__c-1;
update cls;
}
}

if(Trigger.isUnDelete){
for( student__c std : trigger.new ){
class__c cls=claMap.get(std.class__c);
cls.MyCount__c=cls.MyCount__c+1;
update cls;
}
}
}

 

TEST CLASS

@isTest
private class test_triggerOnMyCount{
static testmethod void triggerTest(){
class__C cls=new class__C();
cls.Name__c = 'Apex' ;
insert cls;
System.assertEquals(null,cls.MyCount__c);
Student__C std = new Student__C();
std.Last_Name__c='Tejpal';
std.class__C=cls.id;
insert std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);
delete std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(0,cls.MyCount__c);


}

}


please help

Best Answer chosen by Admin (Salesforce Developers) 
asd@as.asdasd@as.asd

i solved my problem.

its a silly  problem.

TEST class

@isTest
private class test_triggerOnMyCount{
static testmethod void triggerTest(){
class__C cls=new class__C();
cls.Name__c = 'Apex' ;
cls.MaxSize__c=1;
insert cls;
System.assertEquals(null,cls.MyCount__c);
Student__C std = new Student__C();
std.Last_Name__c='Tejpal';
std.class__C=cls.id;
insert std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);
delete std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(0,cls.MyCount__c);
undelete std;


cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);


}

}

All Answers

asd@as.asdasd@as.asd

i solved my problem.

its a silly  problem.

TEST class

@isTest
private class test_triggerOnMyCount{
static testmethod void triggerTest(){
class__C cls=new class__C();
cls.Name__c = 'Apex' ;
cls.MaxSize__c=1;
insert cls;
System.assertEquals(null,cls.MyCount__c);
Student__C std = new Student__C();
std.Last_Name__c='Tejpal';
std.class__C=cls.id;
insert std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);
delete std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(0,cls.MyCount__c);
undelete std;


cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);


}

}


This was selected as the best answer
Navatar_DbSupNavatar_DbSup

Hi,

        Tryout this sample test code to get your requirement, it may help you.

 

@isTest
private class test_triggerOnMyCount{
static testmethod void triggerTest(){
class__C cls=new class__C();
cls.Name__c = 'Apex' ;
insert cls;
System.assertEquals(null,cls.MyCount__c);
Student__C std = new Student__C();
std.Last_Name__c='Tejpal';
std.class__C=cls.id;
insert std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(1,cls.MyCount__c);
delete std;
cls=[select MyCount__c from class__C where id=: cls.id];
System.assertEquals(0,cls.MyCount__c);
undelete std;

 
Arsha Haridas 8Arsha Haridas 8
I had implemented a similiar trigger and test class for another scenario. But, not getting coverage more than 50%. please help me out.

Trigger

trigger ObjectOneUpdate on ObjectTwo__c (after insert, after update, after delete, after undelete) {
    double sub;
    Map<Id,ObjectOne__c> objMap= new Map<id,ObjectOne__c>([Select c.id, c.NumberOne__c From ObjectOne__c c ]);
    
    if(Trigger.isUpdate || Trigger.isInsert || Trigger.isundelete){
        for( ObjectTwo__c objc : trigger.new ){
            ObjectOne__c objp=objMap.get(objc.ObjectOne_Look__c);
            objp.NumberOne__c=objp.NumberOne__c+objc.NumberTwo__c;
            update objp;
        }
    }
        
  else if(trigger.isdelete){
        for(ObjectTwo__c objc : trigger.old){
            ObjectOne__c objp=objMap.get(objc.ObjectOne_Look__c);
            objp.NumberOne__c=objp.NumberOne__c - objc.NumberTwo__c;
            update objp;
            
        }
  }
}



Test Class


@isTest
public class ObjectOneUpdate_Test {
  
        static testmethod void triggerTest(){
            ObjectOne__c objp=new ObjectOne__c();
            objp.Name = 'Apex' ;    
            insert objp; 
            
            System.assertEquals(null,objp.NumberOne__c);
            
            ObjectTwo__C objc = new ObjectTwo__C();
            objc.NumberTwo__c=2;
            objc.ObjectOne_Look__c=objp.id;
            insert objc;
            System.assertEquals(2,objp.NumberOne__c);
            
            objp=[select NumberOne__c from ObjectOne__C where id=: objp.id];
            delete objc;
            System.assertEquals(null,objp.NumberOne__c);
            
            objp=[select NumberOne__c from ObjectOne__C where id=: objp.id];
            undelete objc;
            System.assertEquals(2,objp.NumberOne__c);
            
            objp=[select NumberOne__c from ObjectOne__C where id=: objp.id];
            System.assertEquals(2,objp.NumberOne__c);
}
}


The Scenario is: There are 2 objects (ObjectOne__c, ObjectTwo__c). They both have lookup relationship and ObjectOne is a parent in the relationship.
There is a Number field (NumberTwo__c) in ObjectTwo.
I need the sum of the NumberTwo field value of all child records (of NumberTwo object) in the field (NumberOne__c) of ObjectOne (which is the parent object). And also when delete, the value of NumberOne in parent should be decremented.